Gen 2 Rear Diff Durability

[nextcar]

Originally Posted by Lelandjt

I'm interested in putting taller gearing in my diff (I assume you went the other way) so any info you can give me to track down parts would be useful.

For Gen1, Gen2 not personally confirmed.

https://www.ft86club.com/forums/show...6&postcount=16

[vindiesel]

Originally Posted by Lelandjt

I'm interested in putting taller gearing in my diff (I assume you went the other way) so any info you can give me to track down parts would be useful.

[Powersfrs]

Originally Posted by vindiesel

I swapped out my 2022 brz diff with a 2017 4.3….it’s a pretty noticeable improvement in accelation. I can stay in 6th gear on the highway to easily pass. 5th gear feels very peppy.

[BioRebel]

Originally Posted by Powersfrs

I swapped out my 2022 brz diff with a 2017 4.3….it’s a pretty noticeable improvement in accelation. I can stay in 6th gear on the highway to easily pass. 5th gear feels very peppy.

Hows your highway mileage? Thats the only thing keeping this off of my upgrade list.

[Lelandjt]

Sucks that in 2023 the remaining manuals don't have 7 gears to make everyone happy. "We have the technology."

[OkieSnuffBox]

Originally Posted by Lelandjt

Sucks that in 2023 the remaining manuals don't have 7 gears to make everyone happy. "We have the technology."

They don't need 7 gears.

The only reason Porsches and Corvettes have them is they actually have the power to still pull the car at highway speeds and to try to avoid the gas guzzler tax.

[vindiesel]

Originally Posted by BioRebel

Hows your highway mileage? Thats the only thing keeping this off of my upgrade list.

How many miles you drive a year?

[Lelandjt]

Originally Posted by OkieSnuffBox

They don't need 7 gears.

The only reason Porsches and Corvettes have them is they actually have the power to still pull the car at highway speeds and to try to avoid the gas guzzler tax.

People on here are trying to decide between acceleration or a mellow cruising experience. GT4 owners are complaining that their high speed gearing doesn't let them row the gears enough. Either you've been brainwashed to think 6 speeds is the be all end all or you are mistaken about the cost and difficulty of adding a 7th. Our car and every other 6MT would be better with a 7MT. Or could you not afford to own a manual Twin that cost the same as an auto Twin?

[OkieSnuffBox]

Originally Posted by Lelandjt

People on here are trying to decide between acceleration or a mellow cruising experience. GT4 owners are complaining that their high speed gearing doesn't let them row the gears enough. Either you've been brainwashed to think 6 speeds is the be all end all or you are mistaken about the cost and difficulty of adding a 7th. Our car and every other 6MT would be better with a 7MT. Or could you not afford to own a manual Twin that cost the same as an auto Twin?

What in God name's are you talking about? You don't even have a gen 2 yet and you're calling me brainwashed and questioning my finances?

You sound like a young, kid who just reads stuff and hasn't been actually modifying multiple platforms for 25 years or tracking on 2 and 4 wheels.


Go start some more inane threads about weight loss for the car you don't even have in your possession.

[vindiesel]

Originally Posted by OkieSnuffBox

What in God name's are you talking about? You don't even have a gen 2 yet and you're calling me brainwashed and questioning my finances?

You sound like a young, kid who just reads stuff and hasn't been actually modifying multiple platforms for 25 years or tracking on 2 and 4 wheels.


Go start some more inane threads about weight loss for the car you don't even have in your possession.

For his case I recommend swapping in a 5 speed manual to save weight

[MyHybridBurnsGasAndTires]

Originally Posted by Lelandjt

People on here are trying to decide between acceleration or a mellow cruising experience. GT4 owners are complaining that their high speed gearing doesn't let them row the gears enough. Either you've been brainwashed to think 6 speeds is the be all end all or you are mistaken about the cost and difficulty of adding a 7th. Our car and every other 6MT would be better with a 7MT. Or could you not afford to own a manual Twin that cost the same as an auto Twin?

yeah do tell us about the exact cost of making a 7 speed transmission that will fit this engine






is there an emoji on this forum for jacking off?

[KillerBMotorsport]

Originally Posted by Powersfrs

I swapped out my 2022 brz diff with a 2017 4.3….it’s a pretty noticeable improvement in accelation. I can stay in 6th gear on the highway to easily pass. 5th gear feels very peppy.

What happened to the gear indicator? I wonder if its functionality is compromised because it is based on load/RPM/speed?

[Interceptor777]

Probably not too related to the twins but NA/NB Miata's also used Torsen diffs, and they are rock solid.

Originally Posted by KillerBMotorsport

What happened to the gear indicator? I wonder if its functionality is compromised because it is based on load/RPM/speed?

I'm pretty sure the gear indicator is a switch in the transmission and not related to the diff, though I could be wrong.

[OkieSnuffBox]

Originally Posted by Interceptor777

I'm pretty sure the gear indicator is a switch in the transmission and not related to the diff, though I could be wrong.

IIRC, and there is no guarantee I do, at least on the 2nd gens it uses the speed from the ABS Sensors + the RPM to calculate the gear.

Next time you go for a drive, when you shift, you'll notice just a slight lag before it displays the gear you're in.